This stuff is great for waterproofing more than just your roof. For example, I got this can to waterproof the inside of a large flower pot so that I can use it as a bird bath.It works for roofs, too, but you will need several coats. It will stands out as an obvious patch, so you should collect some of the colored granules from your current shingles, from a gutter or downspout, dry it thoroughly, then sprinkle it on the last coat before it's dry. Does a great job of toughening it up and hides theSee full review